perl function recv

The recv function in Perl is used to receive a message from a socket. It takes the following arguments:

• SOCKET: A file descriptor or a socket object that the message will be received from.
• SCALAR: A variable to store the received message.
• LENGTH: The maximum length of the message to be received.
• FLAGS: Zero or more flags that modify the behavior of the recv function.

Here's an example that demonstrates the use of recv:

use strict;
use warnings;
use IO::Socket::INET;

# create a socket object
my $socket = new IO::Socket::INET (
    PeerAddr => '127.0.0.1',
    PeerPort => '8080',
    Proto => 'tcp'
) or die "Error: $!";

# send a message to the server
my $message = "Hello, server!";
$socket->send($message);

# receive a message from the server
my $buffer = "";
$socket->recv($buffer, 1024);

print "Received message: $buffer\n";

# close the socket
$socket->close();

In this example, we create a socket object and send a message to the server using the send function. We then receive a message from the server using the recv function and print it to the console. Finally, we close the socket using the close function.